Gregory Katmai 55 Internal Frame Pack product image
Gregory Katmai 55 Internal Frame Pack product image
Gregory Katmai 55 Internal Frame Pack product image

Gregory Katmai 55 Internal Frame Pack

  • Moisture-wicking back panel
  • Adjustable attachment loops
  • Recycled fabrics reduce carbon footprint by 28% compared to a conventional nylon pack
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Product Information


  • Designed with the product's lifecycle in mind
  • All fabrics have recycled content and feature a PFC-free durable water repellent coating
  • By using recycled fabrics, this pack’s carbon footprint is reduced by 28% compared to a conventional nylon pack


  • External material: 100% nylon
  • Frame material: alloy steel & fiberglass anti-barreling cross stay & HDPE
  • Pack body: 210D high density / 40% recycled nylon & 420D high density / 45% recycled nylon with PFC-free DWR
  • Pack bottom: 420D high density / 45% recycled nylon with PFC-free DWR
  • Lining: 40% post-consumer recycled 135D polyester with PFC-free DWR
  • Suspension: Lifespan EVA Foam & Polygiene® Stays Fresh Technology


  • Floating top pocket with large zippered compartment, small quick access pocket and an underside zippered pocket, reflective attachment points and key clip
  • Oversized front zippered compartment with mesh divider to keep items in order
  • Sunglass QuickStow system on shoulder harness for quick, secure and scratch-free access to your shades
  • Internal hydration sleeve with SpeedClip hydration hanger compatible with Gregory®'s 3D Hydro Trek Reservoir (reservoir not included)
  • SideWinder bottle holster for one-handed on-the-go water bottle access - tucks away when not in use
  • Side stretch mesh pocket with pass through for over-or-under compression
  • Front oversized stretch mesh pocket with secure buckle closure
  • Zippered bottom sleeping bag compartment with removable divider


  • FreeFloat 360 ventilated back panel with dynamic flex panels and auto rotating shoulder straps that move with the natural movements of your body
  • Moisture wicking ventilated back panel with Polygiene® Stays Fresh Technology - an odor control air mesh treatment that inhibits the growth of odor causing bacteria
  • Adjustable shoulder harnesses and torso length plus customizable hip belt fit and 3D Comfort Cradle for hotspot free, body-hugging comfort
  • Auto-rotating, dual density shoulder harness with sternum strap featuring integrated safety whistle and hydration clip
  • Perimeter alloy frame and fiberglass anti-barreling cross-stay for stable load management
  • Quick pull drawcord closure and top webbing compression
  • Adjustable attachment loops and upper shock locks for trekking poles or ice axe
  • Custom ComfortGrip molded zipper pulls and molded webbing keepers for strap management
  • NANO CONNECT - included interior toggles to connect Nano 14 Daypack
  • Country of Origin : Imported
  • Brand : Gregory


Gregory Katmai 55 Sizing Specs

Volume50 L / 3,051 cu in55 L / 3,356 cu in
Weight4.61 lbs / 2.09 kg4.68 lbs / 2.12 kg
Max Carrying Weight45 lbs / 20.4 kg45 lbs / 20.4 kg
Packed Dimensions28.7 x 12.6 x 16.5 in / 73 x 32 x 42 cm30.3 x 12.6 x 16.5 in / 77 x 32 x 42 cm
Fits Torsos15 - 19 in / 38.1 - 48.3 cm18 - 22 in / 45.7 - 55.9 cm
Fits Hips/Waists25 - 48 in / 63.5 - 121.9 cm27 - 53 in / 68.5 - 134.2 cm